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首页> 外文会议>Remote Sensing of Clouds and the Atmosphere XII; Proceedings of SPIE-The International Society for Optical Engineering; vol.6745 >Aerosol optical properties variation on different mountain sites in Italy
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Aerosol optical properties variation on different mountain sites in Italy

机译：意大利不同山区的气溶胶光学特性变化

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摘要

Direct solar irradiance and IR atmospheric radiance have been measured during different measurements campaigns, conducted in three mountain sites in Italy, far from anthropogenic sources. Direct solar irradiance has been measured by a high resolution (1.5 nm) AVANTES radiometer, working in the spectral range 400 nm - 900 nm, while down welling IR sky radiance measurements has been measured by an MR100 BOMEM Fourier Transform Spectrometer covering the spectral ranges 500 cm~(-1) - 5000 cm~(-1) and 1 cm~(-1) of resolution. At least two Radiosonde launches per day furnished temperature and water vapour profiles. The instruments were located on a mobile laboratory, specifically projected to host them. The parameters obtained from direct solar irradiance are Aerosol Optical Depth, Angstrom parameters and Aerosol Size Distributions retrieval, while from IR data water vapour and temperature profiles have been retrieved. Different orographic characteristics and different air-masses circulation on the measurement sites influenced Aerosol Optical Depth values and variation. Infrared radiances inversion allows the water vapour content retrieval and a correlation between aerosol effective radii and water vapour content has been looked for.
机译：在意大利的三个远离人为来源的山区进行的不同测量活动中，已经测量了直接太阳辐射和红外大气辐射。直接太阳辐照度已通过高分辨率（1.5 nm）的AVANTES辐射计进行了测量，其光谱范围为400 nm-900 nm，而井下红外天空辐射度的测量则采用了覆盖光谱范围500的MR100 BOMEM傅立叶变换光谱仪cm〜（-1）-5000 cm〜（-1）和1 cm〜（-1）的分辨率。每天至少有两次无线电探空仪发射，可提供温度和水蒸气剖面图。这些仪器位于专门设计用来存放它们的流动实验室中。从直接太阳辐照度获得的参数是气溶胶光学深度，埃参数和气溶胶尺寸分布检索，而从红外数据中已检索到水蒸气和温度曲线。测量站点上不同的地形特征和不同的气团环流影响了气溶胶光学深度值和变化。红外辐射率反演可以检索水汽含量，并且一直在寻找气溶胶有效半径与水汽含量之间的相关性。

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